[go: up one dir, main page]

KR970005022A - Gray scale display method and gray scale display device - Google Patents

Gray scale display method and gray scale display device Download PDF

Info

Publication number
KR970005022A
KR970005022A KR1019960004832A KR19960004832A KR970005022A KR 970005022 A KR970005022 A KR 970005022A KR 1019960004832 A KR1019960004832 A KR 1019960004832A KR 19960004832 A KR19960004832 A KR 19960004832A KR 970005022 A KR970005022 A KR 970005022A
Authority
KR
South Korea
Prior art keywords
subfields
field
subfield
light emission
emission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
KR1019960004832A
Other languages
Korean (ko)
Other versions
KR100214356B1 (en
Inventor
아끼히꼬 코오가미
시게오 미코시바
싱이치 시나다
무쯔미 스즈끼
Original Assignee
미따 가쯔시게
가부시기가이샤 히다찌세이사구쇼
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 미따 가쯔시게, 가부시기가이샤 히다찌세이사구쇼 filed Critical 미따 가쯔시게
Publication of KR970005022A publication Critical patent/KR970005022A/en
Application granted granted Critical
Publication of KR100214356B1 publication Critical patent/KR100214356B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
    • G09G3/2033—Display of intermediate tones by time modulation using two or more time intervals using sub-frames with splitting one or more sub-frames corresponding to the most significant bits into two or more sub-frames
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/298—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels using surface discharge panels
    • G09G3/2983—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels using surface discharge panels using non-standard pixel electrode arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays
    • H04N3/125—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays using gas discharges, e.g. plasma
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays
    • H04N3/127—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0262—The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0266—Reduction of sub-frame artefacts
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/399—Control of the bit-mapped memory using two or more bit-mapped memories, the operations of which are switched in time, e.g. ping-pong buffers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S348/00—Television
    • Y10S348/91—Flicker reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Multimedia (AREA)
  • Plasma & Fusion (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of Gas Discharge Display Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

화상등의 표시장치에 있어서, 표시될 화상의 밝기는, 표면화면을 구성하는 발광소자의 각각의 발광시간을 변화시킴으로써 실현된다. 각 발광소자는 휘도의 계조를 표시하는 복수비트부호를 표시될 신호로부터 수신한다. 텔레비젼신호의 1필드에 상당한 기간을 복수비트부호의 각각의 비트에 대응한 복수의 서브필드로 분할한다. 복수의 서브필드는 각각 대응하는 비트의 웨이트에 비례한 기간폭을 가진다. 각 발광소자는 복수비트부호중에서 "1"(또는 "0")의 값을 가진 비트에 대응하는 서브필드에서 발광함으로써 계조를 표시한다. 각 발광소자에 대해서, 1필드에 상당하는 기간중에서 최초로 발광하는 서브필드의 발광개시시점으로부터 다음 필드에 상당하는 기간내에서 최후에 발광하는 서브필드 발광개시시점까지의 시간간격(Tm)을 시각특성의 임계융합주기(critical fusion period) 보다 짧게 한 것을 특징으로 하는 계조표시방법 및 계조표시장치를 제공한다.In a display device such as an image, the brightness of an image to be displayed is realized by changing the light emission time of each light emitting element constituting the surface screen. Each light emitting element receives a multi-bit code representing a gradation of luminance from a signal to be displayed. And divides a time period corresponding to one field of the television signal into a plurality of sub-fields corresponding to the respective bits of the plural-bit code. Each of the plurality of subfields has a period width proportional to the weight of the corresponding bit. Each light emitting element emits light in a subfield corresponding to a bit having a value of "1" (or "0" For each light emitting element, the time interval (Tm) from the emission start time of the first subfield to the last subfield emission start time within the period corresponding to the next field among the periods corresponding to one field is referred to as a time characteristic Wherein the gray scale display method is shorter than the critical fusion period.

Description

계조표시방법 및 계조표시장치Gray scale display method and gray scale display device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명에 의한 계조표시방법의 제1실시예의 설명을 위한 타임차트, 제2도는 본 발명에 의한 표시장치의 구성예를 표시한 회로구성도.FIG. 1 is a time chart for explaining the first embodiment of the gray scale display method according to the present invention, FIG. 2 is a circuit configuration diagram showing a configuration example of the display device according to the present invention. FIG.

Claims (20)

텔레비젼신호의 1필드의 시간폭을 복수의 서브필드로 분할하고, 상기 복수의 서브필드는 미리 정해진 발광시간폭을 가지고, 정보신호에 따라서, 상기 서브필드의 발광을 제어하고, 상기 정보신호를 표시하는 계조표시방법에 있어서, 상기 텔레비젼신호의 1필드의 최초의 서브필드의 발광개시점과, 다음 필드의 전체의 발광시간폭의 거의 중간으로 되는 점과의 시간 간격이, 시각특성의 임계중합주기의 거의 근방 또는 그 이하가 되도록, 상기 복수의 서브필드를 배치하는 것을 특징으로 하는 계조표시방법.A time width of one field of the television signal is divided into a plurality of subfields, the plurality of subfields have a predetermined light emission time width, and the light emission of the subfield is controlled in accordance with the information signal, Wherein a time interval between a light emission starting point of a first subfield of one field of the television signal and a point substantially midway between the total light emitting time width of the next field is a threshold polymerization cycle of visual characteristics Wherein the plurality of subfields are arranged so as to be substantially in the vicinity of or near the center of the subfields. 제1항에 있어서, 상기 복수의 서브필드중 상기 발광시간폭이 가장 큰 서브필드를 최상위서브필드로 하고, 상기 복수의 서브필드중 최상위서브필드를 제외한 서브필드를 하위서브필드로 하고, 상기 최상위서브필드의 배치가 상기 텔레비젼신호의 1필드내에서 최초 또는 최후의 서브필드가 되도록 배치하고, 상기 텔레비젼신호의 1필드내의 모든 상기 하위서브필드가 발광했을 때의 발광개시점과 다음 필드의 상기 최상위서브필드만이 발광했을 때의 발광의 개시점과의 시간간격과, 상기 텔레비젼신호의 1필드내의 상기 최상위서브필드만이 발광했을때의 발광개시점과 다음 필드의 모든 상기 하위서브필드가 발광했을 때의 발광개시점과의 시간간격이, 함께 시각특성의 임계융합주기의 거의 근방 또는 그 이하가 되도록, 상기 복수의 서브필드를 배치하는 것을 특징으로 하는 계조표시방법.The method of claim 1, wherein a subfield having a largest emission time width is a highest subfield among the plurality of subfields, a subfield excluding a highest subfield among the plurality of subfields is a lower subfield, Wherein the arrangement of the subfields is such that the arrangement of the subfields is the first or the last subfield in one field of the television signal, and the light emission start point when all the lower subfields within one field of the television signal emit light, The time interval between the start time of the light emission when only the sub-field is lighted and the light-emitting start time when only the highest-order sub-field within one field of the television signal is emitted and all the lower sub-fields of the next field Field is set so as to be close to or near the critical fusion period of the visual characteristic, Gray scale display method, characterized in that the. 제1항에 있어서, 상기 시각특성의 임계융합주기가 20msec로 하는 것을 특징으로 하는 계조표시방법.The method according to claim 1, wherein the critical convergence period of the visual characteristics is 20 msec. 제2항에 있어서, 상기 시각특성의 임계융합주기가 20msec로 하는 것을 특징으로 하는 계조표시방법.3. The method according to claim 2, wherein the critical convergence period of the visual characteristics is 20 msec. 제1항에 있어서, 상기 텔레비젼신호의 1필드가 최초의 서브필드의 발광개시점과 다음 필드의 전체의 발광시간의 거의 절반의 발광점과의 시간간격이, 20.8msec를 초과하지 않도록, 상기 복수의 서브필드를 배치하는 것을 특징으로 하는 계조표시방법.The method as claimed in claim 1, wherein the one field of the television signal is a plurality of light emission start points of the first subfield and a plurality of light emission points of substantially half the total light emission time of the next field, Of subfields of the subfields are arranged. 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 복수의 서브필드의 상기 발광시간폭이 2진부호를 형성하는 것을 특징으로 하는 계조표시방법.The method according to any one of claims 1 to 5, wherein the emission time width of the plurality of subfields forms a binary arc. 제6항에 있어서, 상기 발광시간폭에 의해 형성되는 2진부호의 복수의 서브필드의 배열이, 상기 2진부호의 가장 작은 서브필드로부터 발광시간폭이 커지도록, 순차적으로 배열되어 있는 것을 특징으로 하는 계조표시방법.The display device according to claim 6, wherein the arrangement of the plurality of subfields of the binary arc call formed by the emission time width is sequentially arranged so that the light emission time width becomes larger from the smallest subfield of the binary arc call Gray scale display method. 제6항에 있어서, 상기 발광시간폭에 의해 형성되는 2진부호의 복수의 서브필드의 배열이, 상기 2진부호의 가장 큰 최상위서브필드로부터 발광시간폭이 작아지도록, 순차적으로 배열되어 있는 것을 특징으로 하는 계조표시방법.The display device according to claim 6, wherein the arrangement of the plurality of subfields of the binary arc call formed by the emission time width is arranged in order so that the light emission time width becomes smaller from the highest highest subfield of the binary arc call . 제2항, 6항, 7항 또는 제8항에 있어서, 모든 상기 하위서브필드의 발광시간이 3.3msec 이내의 시간폭내에 존재하는 것을 특징으로 하는 계조표시방법.The gray scale display method according to any one of claims 2, 6, 7, and 8, wherein emission times of all the lower sub-fields are within a time width of 3.3 msec or less. 점등, 비점등 또는 광의 통과, 차단 또는 광의 반사의 방향을 바꾸고 발광시간을 제어해서 발광을 제어하는 표시패널과, 정보신호를 2진부호로 변환하는 회로와, 텔레비젼신호의 1필드의 시간폭을 복수의 서브필드로 분할하고, 상기 복수의 서브필드의 발광시간폭을 미리 정해진 값으로 설정하는 회로와, 상기 복수의 서브필드의 발광을 제어하는 회로와, 상기 텔레비젼신호의 1필드의 최초의 서브필드의 발광개시점과, 다음 필드의 전체의 발광시간의 거의 중간이 되는 점과의 시간간격이 시각특성의 임계융합주기의 거의 근방 또는 그 이하가 되도록, 상기 복수의 서브필드를 배치하는 수단에 의해 구성된 것을 특징으로 하는 계조표시장치.A display panel for changing the direction of light, blocking, or reflecting light and controlling light emission by controlling the light emission time; a circuit for converting the information signal into a binary signal; A circuit for setting a light emission time width of the plurality of subfields to a predetermined value; a circuit for controlling light emission of the plurality of subfields; Field emission start point of the next field and the point at which the point is substantially midway between the total light emission time of the next field is substantially in the vicinity of or below the critical fusion period of the visual characteristic And the gray scale display device. 제10항에 있어서, 상기 복수의 서브필드중, 상기 발광시간폭이 가장 큰 서브필드를 최상위서브필드로 하고, 상기 복수의 서브필드중 최상위서브필드를 제외한 서브필드를 하위서브필드로 하고, 상기 텔레비젼신호의 1필드내의 모든 상기 하위서브필드가 발광했을 때의 발광개시점과 다음 필드의 상기 최상위서브필드만이 발광했을 때의 발광의 개시점과의 시간간격과, 상기 텔레비젼신호의 1필드내의 상기 최상위서브필드만이 발광했을 때의 발광개시점과 다음 필드의 모든 상기 하위서브필드가 발광했을 때의 발광개시점과의 시간간격이, 함께 사람이 시각특성의 임계중합주기의 거의 근방 또는 그 이하가 되도록, 상기 복수의 서브필드를 배치하는 수단에 의해 구성된 것을 특징으로 하는 계조표시장치.11. The method of claim 10, wherein, among the plurality of subfields, a subfield having the largest light emission time width is a highest-order subfield, a subfield excluding a highest-order subfield among the plurality of subfields is a lower subfield, A time interval between a start point of light emission when all the lower sub-fields within one field of the television signal emit light and a start point of light emission when only the uppermost sub-field of the next field emits light, The time interval between the emission start time when the uppermost sub-field only emits light and the light emission start time when all the lower sub-fields emit light in the next field, And the subfields are arranged in such a manner that the number of the subfields is equal to or less than the number of the subfields. 제10항에 있어서, 상기 시각특성을 임계융합주기를 20msec로 하는 것을 특징으로 하는 계조표시장치.11. The gray scale display device according to claim 10, wherein the threshold convergence period is 20 msec. 제11항에 있어섬, 상기 시각특성의 임계융합주기를 20msec로 하는 것을 특징으로 하는 계조표시장치.A gradation display device according to claim 11, wherein the island has a critical integration period of the visual characteristics of 20 msec. 제10항에 있어서, 상기 텔레비젼신호의 1필드의 최초의 서브필드의 발광개시점과 다음 필드의 전체의 발광시간의 거의 중간이 되는 점과의 시간간격이, 20.8msec를 초과하지 않도록, 상기 복수의 서브필드를 배치하는 수단에 의해 구성된 것을 특징으로 하는 계조표시장치.The method as claimed in claim 10, wherein the time interval between the emission start time of the first sub-field of one field of the television signal and the point substantially midway between the total emission time of the next field is not more than 20.8 msec, And a means for arranging the subfields of the subfields. 제11항에 있어서, 상기 텔레비젼신호의 1필드내의 모든 상기 하위서브필드가 발광했을 때의 발광개시점과 다음 필드의 상기 최상위서브필드만이 발광했을 때의 발광의 개시점과의 시간간격과, 상기 텔레비젼신호의 1필드내의 상기 최상위서브필드만이 발광했을 때의 발광개시점과 다음 필드의 모든 상기 하위서브필드가 발광했을 때의 발광개시점과의 시간간격이, 함께 20.8msec를 초과하지 않도록, 상기 복수의 서브필드를 배치하는 수단에 의해 구성된 것을 특징으로 하는 계조표시장치.The method according to claim 11, further comprising: calculating a time interval between a start point of light emission when all the lower sub-fields within one field of the television signal are emitted and a start point of light emission when only the uppermost sub- The time interval between the emission starting time when only the highest order subfield in one field of the television signal is emitted and the emission starting time when all the lower order subfields in the next field are emitted does not exceed 20.8 msec together And means for arranging the plurality of subfields. 제10항에 있어서, 상기 복수의 서브필드의 상기 발광시간폭이 2진부호를 형성하는 화로에 의해 구성한 것을 특징으로 하는 계조표시장치.The gray scale display device according to claim 10, wherein the emission time width of the plurality of subfields is constituted by an arc furnace forming a binary arc. 제16항에 있어서, 상기 발광시간폭에 의해 형성되는 2진부호의 복수의 서브필드의 배열이, 상기 2진부호의 가장 작은 서브필드로부터 발광시간폭이 커지도록, 순차적으로 배열하는 수단으로 한 것을 특징으로 하는 계조표시장치.The display device according to claim 16, characterized in that the arrangement of the plurality of subfields of the binary arc call formed by the emission time width is arranged in order so that the light emission time width becomes larger from the smallest subfield of the binary arc call . 제16항에 있어서, 상기 발광시간폭에 의해 형성되는 2진부호의 복수의 서브필드의 배열이, 상기 2진부호의 가장 작은 서브필드로부터 발광시간폭이 커지도록, 순차적으로 배열하는 수단으로 한 것을 특징으로 하는 계조표시장치.The display device according to claim 16, characterized in that the arrangement of the plurality of subfields of the binary arc call formed by the emission time width is arranged in order so that the light emission time width becomes larger from the smallest subfield of the binary arc call . 제10항 내지 제18항 어느 한 항에 있어서, 상기 발광소자가 메모리기능을 가진 가스방전발광소자에 의해 구성된 것을 특징으로 하는 계조표시장치.The gray scale display device according to any one of claims 10 to 18, wherein the light emitting element is constituted by a gas discharge light emitting element having a memory function. 제19항에 있어서, 상기 가스방전소자가 적어도 화면분할되어 있으며, 어드레스를 위한 주사가 적어도 2행동시 구동되고 있는 것을 특징으로 하는 계조표시장치.20. A gray scale display device according to claim 19, wherein said gas discharge element is divided at least in a screen, and scanning for an address is driven at least in two actions. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960004832A 1990-03-02 1996-02-27 Gray scale display method and gray scale display device Expired - Fee Related KR100214356B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4934690 1990-03-02
JP90-49346 1990-03-02
KR1019910003381A KR100215590B1 (en) 1990-03-02 1991-02-28 Tone display method and apparatus therefor

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
KR1019910003381A Division KR100215590B1 (en) 1990-03-02 1991-02-28 Tone display method and apparatus therefor

Publications (2)

Publication Number Publication Date
KR970005022A true KR970005022A (en) 1997-01-29
KR100214356B1 KR100214356B1 (en) 1999-08-02

Family

ID=12828450

Family Applications (2)

Application Number Title Priority Date Filing Date
KR1019910003381A Expired - Fee Related KR100215590B1 (en) 1990-03-02 1991-02-28 Tone display method and apparatus therefor
KR1019960004832A Expired - Fee Related KR100214356B1 (en) 1990-03-02 1996-02-27 Gray scale display method and gray scale display device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
KR1019910003381A Expired - Fee Related KR100215590B1 (en) 1990-03-02 1991-02-28 Tone display method and apparatus therefor

Country Status (6)

Country Link
US (1) US5187578A (en)
EP (1) EP0444962B1 (en)
JP (1) JP2720607B2 (en)
KR (2) KR100215590B1 (en)
CA (1) CA2037269A1 (en)
DE (1) DE69104520T2 (en)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174850A1 (en) * 2000-01-26 2002-01-23 Deutsche Thomson-Brandt Gmbh Method for processing video pictures for display on a display device
JP2932686B2 (en) * 1990-11-28 1999-08-09 日本電気株式会社 Driving method of plasma display panel
EP0510699B1 (en) * 1991-04-24 1995-06-21 Nec Corporation Magnetic structure
US5422654A (en) 1991-10-17 1995-06-06 Chips And Technologies, Inc. Data stream converter with increased grey levels
JP3230755B2 (en) * 1991-11-01 2001-11-19 富士写真フイルム株式会社 Matrix driving method for flat display device
US5536193A (en) 1991-11-07 1996-07-16 Microelectronics And Computer Technology Corporation Method of making wide band gap field emitter
US5543684A (en) 1992-03-16 1996-08-06 Microelectronics And Computer Technology Corporation Flat panel display based on diamond thin films
US5686791A (en) 1992-03-16 1997-11-11 Microelectronics And Computer Technology Corp. Amorphic diamond film flat field emission cathode
US5449970A (en) 1992-03-16 1995-09-12 Microelectronics And Computer Technology Corporation Diode structure flat panel display
US6127773A (en) 1992-03-16 2000-10-03 Si Diamond Technology, Inc. Amorphic diamond film flat field emission cathode
US5675216A (en) 1992-03-16 1997-10-07 Microelectronics And Computer Technololgy Corp. Amorphic diamond film flat field emission cathode
JP3107260B2 (en) * 1993-03-02 2000-11-06 株式会社富士通ゼネラル Color display
KR100271479B1 (en) * 1993-08-23 2000-11-15 김순택 Driving Method of Plasma Display Panel
CA2172803A1 (en) 1993-11-04 1995-05-11 Nalin Kumar Methods for fabricating flat panel display systems and components
US6362835B1 (en) * 1993-11-23 2002-03-26 Texas Instruments Incorporated Brightness and contrast control for a digital pulse-width modulated display system
JP2737763B2 (en) * 1994-12-05 1998-04-08 日本電気株式会社 Driving method of plasma display panel
US6025818A (en) * 1994-12-27 2000-02-15 Pioneer Electronic Corporation Method for correcting pixel data in a self-luminous display panel driving system
KR100389514B1 (en) 1995-04-07 2003-10-04 가부시키가이샤 후지쓰제너럴 Method and apparatus for driving a display device
US5900886A (en) * 1995-05-26 1999-05-04 National Semiconductor Corporation Display controller capable of accessing an external memory for gray scale modulation data
US5821910A (en) * 1995-05-26 1998-10-13 National Semiconductor Corporation Clock generation circuit for a display controller having a fine tuneable frame rate
US5959598A (en) * 1995-07-20 1999-09-28 The Regents Of The University Of Colorado Pixel buffer circuits for implementing improved methods of displaying grey-scale or color images
US5767828A (en) 1995-07-20 1998-06-16 The Regents Of The University Of Colorado Method and apparatus for displaying grey-scale or color images from binary images
CA2185592A1 (en) * 1995-09-20 1997-03-21 Masaji Ishigaki Tone display method of tv image signal and apparatus therefor
JP3322809B2 (en) * 1995-10-24 2002-09-09 富士通株式会社 Display driving method and apparatus
US5940142A (en) * 1995-11-17 1999-08-17 Matsushita Electronics Corporation Display device driving for a gray scale expression, and a driving circuit therefor
FR2745411B1 (en) * 1996-02-27 1998-04-03 Thomson Csf PROCESS FOR CONTROLLING AN IMAGE DISPLAY SCREEN USING THE PRINCIPLE OF LIGHT EMISSION DURATION MODULATION, AND DISPLAY DEVICE IMPLEMENTING THE PROCESS
JP3688055B2 (en) * 1996-04-03 2005-08-24 富士通株式会社 Surface discharge type PDP
JP3518949B2 (en) * 1996-06-11 2004-04-12 三菱電機株式会社 Display device
JP3719783B2 (en) * 1996-07-29 2005-11-24 富士通株式会社 Halftone display method and display device
KR100217133B1 (en) * 1996-09-03 1999-09-01 구자홍 Plasma display panel
TW366512B (en) * 1996-09-18 1999-08-11 Matsushita Electric Ind Co Ltd Plasma display device and the brightness control method
KR100234034B1 (en) * 1996-10-01 1999-12-15 구자홍 Ac plasma display panel driving method
JP3179036B2 (en) * 1996-10-14 2001-06-25 三菱電機株式会社 Display device
JPH10124000A (en) * 1996-10-22 1998-05-15 Pioneer Electron Corp Driving device for spontaneous luminous display
JP2962245B2 (en) * 1996-10-23 1999-10-12 日本電気株式会社 Display device gradation display method
KR100669274B1 (en) * 1996-11-12 2007-04-19 산요덴키가부시키가이샤 Method of driving flat panel display apparatus
EP0973147A4 (en) * 1997-03-31 2007-09-26 Matsushita Electric Ind Co Ltd METHOD OF VISUALIZING THE FIRST PICTURE PLAN AND RELATED DEVICE
JP3703247B2 (en) 1997-03-31 2005-10-05 三菱電機株式会社 Plasma display apparatus and plasma display driving method
JP3517551B2 (en) * 1997-04-16 2004-04-12 パイオニア株式会社 Driving method of surface discharge type plasma display panel
FR2762703B1 (en) * 1997-04-25 1999-07-16 Thomson Multimedia Sa ROTARY CODE ADDRESSING METHOD AND DEVICE FOR PLASMA SCREENS
US6369782B2 (en) * 1997-04-26 2002-04-09 Pioneer Electric Corporation Method for driving a plasma display panel
JPH10307561A (en) 1997-05-08 1998-11-17 Mitsubishi Electric Corp Driving method of plasma display panel
DE69839542D1 (en) * 1997-08-07 2008-07-10 Hitachi Ltd Color image display device and method
US6741227B2 (en) 1997-08-07 2004-05-25 Hitachi, Ltd. Color image display apparatus and method
JP2994631B2 (en) * 1997-12-10 1999-12-27 松下電器産業株式会社 Drive pulse control device for PDP display
US6151001A (en) * 1998-01-30 2000-11-21 Electro Plasma, Inc. Method and apparatus for minimizing false image artifacts in a digitally controlled display monitor
DE19833597A1 (en) * 1998-07-25 2000-01-27 Grundig Ag Pulse width modulated image display device e.g. for plasma display
EP0980059B1 (en) * 1998-08-07 2005-03-30 Deutsche Thomson-Brandt Gmbh Method and apparatus for processing video pictures, especially for false contour effect compensation
EP0978817A1 (en) * 1998-08-07 2000-02-09 Deutsche Thomson-Brandt Gmbh Method and apparatus for processing video pictures, especially for false contour effect compensation
JP3762568B2 (en) 1998-08-18 2006-04-05 日本碍子株式会社 Display driving apparatus and display driving method
EP0982707A1 (en) 1998-08-19 2000-03-01 Deutsche Thomson-Brandt Gmbh Method and apparatus for processing video pictures, in particular for large area flicker effect reduction
EP0982708B1 (en) 1998-08-19 2011-05-11 Thomson Licensing Method and apparatus for processing video pictures, in particular for large area flicker effect reduction
US6359604B1 (en) 1998-08-20 2002-03-19 Micron Technology, Inc. Matrix addressable display having pulse number modulation
JP2994632B1 (en) 1998-09-25 1999-12-27 松下電器産業株式会社 Drive pulse control device for PDP display to prevent light emission center fluctuation
JP2000112430A (en) 1998-10-08 2000-04-21 Matsushita Electric Ind Co Ltd Display device and driving method thereof
DE19856436A1 (en) 1998-12-08 2000-06-15 Thomson Brandt Gmbh Method for driving a plasma screen
TW567363B (en) 1999-05-14 2003-12-21 Seiko Epson Corp Method for driving electrooptical device, drive circuit, electrooptical device, and electronic device
JP3638099B2 (en) * 1999-07-28 2005-04-13 パイオニアプラズマディスプレイ株式会社 Subfield gradation display method and plasma display
EP1233395A4 (en) * 1999-10-19 2008-11-19 GRADING DISPLAY METHOD FOR EFFICIENTLY REDUCING PAPILLOTEMENTS AND GRADING DISPLAY
JP2001337643A (en) * 2000-05-26 2001-12-07 Sony Corp Digital image display
JP2002082647A (en) * 2000-09-05 2002-03-22 Hitachi Ltd Display device and display method
KR100727304B1 (en) * 2000-11-24 2007-06-12 엘지전자 주식회사 Driving method of field emission display device
JP4822590B2 (en) * 2001-02-08 2011-11-24 三洋電機株式会社 Organic EL circuit
US20020167612A1 (en) * 2001-04-02 2002-11-14 Pelco Device and method for reducing flicker in a video display
KR100445029B1 (en) * 2002-01-07 2004-08-21 삼성에스디아이 주식회사 Method of driving plasma display panel for displaying image signal of P.A.L format
JP2009086228A (en) * 2007-09-28 2009-04-23 Toshiba Corp Device and method of processing video image signal
CN111554239A (en) * 2020-05-22 2020-08-18 Tcl华星光电技术有限公司 Backlight control method, device and storage medium

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237734B2 (en) * 1972-06-22 1977-09-24
US4006298A (en) * 1975-05-20 1977-02-01 Gte Laboratories Incorporated Bistable matrix television display system
US4074320A (en) * 1976-12-13 1978-02-14 Bell Telephone Laboratories, Incorporated High quality light emitting diode array imaging system
US4378556A (en) * 1979-12-10 1983-03-29 United Technologies Corporation Gray shade operation of sequentially addressed AC plasma panel
US4385293A (en) * 1979-12-10 1983-05-24 United Technologies Corporation Gray shade operation of a large AC plasma display panel
US4622549A (en) * 1983-06-29 1986-11-11 International Business Machines Corporation Repetition rate compensation and mixing in a plasma panel
US4709995A (en) * 1984-08-18 1987-12-01 Canon Kabushiki Kaisha Ferroelectric display panel and driving method therefor to achieve gray scale
JPH0827601B2 (en) * 1986-01-13 1996-03-21 株式会社日立製作所 Liquid crystal display device and driving method thereof
JPS62171385A (en) * 1986-01-24 1987-07-28 Mitsubishi Electric Corp Halftone display system
FR2622724B1 (en) * 1987-10-30 1993-02-12 Thomson Csf DEVICE FOR GENERATING BRIGHTNESS LEVELS ON A VISUALIZATION SCREEN
JP2739973B2 (en) * 1988-11-04 1998-04-15 日本放送協会 Halftone display method for color display panel
FI85427C (en) * 1989-06-14 1992-04-10 Vaisala Oy Method and apparatus for an object's azimuth and elevation measurement
JP2517005Y2 (en) * 1989-07-21 1996-11-13 パイオニア株式会社 Video signal expansion circuit

Also Published As

Publication number Publication date
EP0444962B1 (en) 1994-10-12
KR100215590B1 (en) 1999-08-16
US5187578A (en) 1993-02-16
KR910017352A (en) 1991-11-05
EP0444962A3 (en) 1992-02-26
EP0444962A2 (en) 1991-09-04
KR100214356B1 (en) 1999-08-02
JPH04211294A (en) 1992-08-03
DE69104520D1 (en) 1994-11-17
JP2720607B2 (en) 1998-03-04
DE69104520T2 (en) 1995-03-02
CA2037269A1 (en) 1991-09-03

Similar Documents

Publication Publication Date Title
KR970005022A (en) Gray scale display method and gray scale display device
US6100863A (en) Motion pixel distortion reduction for digital display devices using dynamic programming coding
EP1764767A2 (en) Gray scale expression method and gray scale display device
JP2000181400A (en) Display device
US20020021303A1 (en) Display control apparatus and display control method
KR20000070527A (en) Plasma display panel drive pulse controller for preventing fluctuation in subframe location
KR100626126B1 (en) Display panel driver having multi-grayscale processing function
JP2000020004A (en) Picture display device
KR970076455A (en) Intra-frame time division halftone display method and In-frame time division display device
KR100286823B1 (en) Plasma Display Panel Driving Method
CN100437692C (en) Plasma display panel driving method and apparatus
JPH09258688A (en) Display device
WO2003032352A2 (en) Plasma display panel driving method and apparatus
JP2002351390A (en) Display device and grey level display method
EP1603103A2 (en) Display apparatus
EP1732055A1 (en) Display device
KR100541057B1 (en) Display panel driving method
JPH11119730A (en) Video display device
JP2000020024A (en) Driving method of plasma display
KR100589312B1 (en) Driving circuit of plasma display
KR20060019871A (en) Display device and driving method thereof
JPH08263009A (en) Method and structure for operation of display device
EP1622116B1 (en) Method and device for driving display panel
JP2001236037A (en) Driving method for plasma display panel
KR100260255B1 (en) Grayscale processing device of AC plasma display panel

Legal Events

Date Code Title Description
A107 Divisional application of patent
A201 Request for examination
PA0107 Divisional application

St.27 status event code: A-0-1-A10-A16-div-PA0107

St.27 status event code: A-0-1-A10-A18-div-PA0107

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

R18-X000 Changes to party contact information recorded

St.27 status event code: A-3-3-R10-R18-oth-X000

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

T13-X000 Administrative time limit extension granted

St.27 status event code: U-3-3-T10-T13-oth-X000

PN2301 Change of applicant

St.27 status event code: A-3-3-R10-R11-asn-PN2301

St.27 status event code: A-3-3-R10-R13-asn-PN2301

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

Fee payment year number: 1

St.27 status event code: A-2-2-U10-U11-oth-PR1002

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

G170 Re-publication after modification of scope of protection [patent]
LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

Not in force date: 20020520

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

St.27 status event code: A-4-4-U10-U13-oth-PC1903

PC1903 Unpaid annual fee

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20020520

St.27 status event code: N-4-6-H10-H13-oth-PC1903

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

P22-X000 Classification modified

St.27 status event code: A-4-4-P10-P22-nap-X000